Unit 2 terms

Question 1

Structural Adaptation

Answer 1

Physical adaptations in a animal

Question 2

behavioral adaptation

Answer 2

fight or flight behaviors, acting dead to survive

Question 3

physiological adaptation

Answer 3

variations in metabolic processes of an organism

Question 4

selective pressure

Answer 4

choose what traits are beneficial for survival and what traits are detrimental for survival

Question 5

sexual selective pressure

Answer 5

traits that increase mating success, traits to help attract a mate

Question 6

Directional selection

Answer 6

one extreme is favored over the other

Question 7

Stabilizing selection

Answer 7

*the middle is favored over both extremes

Question 8

Disruptive selection

Answer 8

both extremes are favored over the middle

Question 9

Natural Selection

Answer 9

organism with successful variations will better survive, reproduce and pass their variations on the next generation

Question 10

gene flow

Answer 10

when organism move from one population to another and their genes join the new population

Question 11

gene pool

Answer 11

all of the genes within a population

Question 12

alleles

Answer 12

different versions of genes

Question 13

genetic drift

Answer 13

change in gene frequencies due to random chance

Question 14

genetic mutations

Answer 14

any change in the DNA sequence of an organism